Asszotor



C. BEERS.

WRAPPING NAcHxNE.

MPLICATION FILED JUNE 23, TSH. l LQ, l Patente Aug. l5, 1916.

3 SHEETS-SHEET l.

C. BEERS.

WRAP'PING mAcHlNE.

A'PPLICATION FILED IUNE 28, 1911.

1L 9 1 94195@ Patented Aug. 15, 1916.

3 SHEETS-SHEET 2.

, Wim/EnggA W i. mj -Wj www,

0F MAINE.

CHARLES BEERS, 0F NEW HAVEN, ClBTNECTICU T0 THE INTERNATIONAL BREADVIRPPIBTG Mt:

'WRAPPING-MACHINE.

Application filed June 23, 19N..

ITo all whom it may concern.'

new and usetul ln'iprovements in lllfrapy piiig-lvlachines; and l dohereby declare the following to be a full, clear, and exact descriptionof the invention, suoli as will enable others skilled in the art towhich it appertai'ns to make and use the same.

My invention relates to wrapping` machines adapted for automaticallyetlecting the initial wrap of paper about various articles, andparticularly such articles ae vary in size, like, for instance, a loatxof hreajd. ln automatically wrapping` articlee 0i? uniform size, theWrapper sections can lie out of uniform length; but with articles thatvary in size, the paper wrapper must oi necessity vary with eachindividual article. To provide Jfor this, it is necessary that the Iirststep in wrapping articles of varying sizes is 't'or cach article todetermine the amount of paper required to completely envelop it withoutlea ving any projecting, ends.

'Therefore the object ot my invention is to automatically cause eacharticle to draw v oli'i `from a reel or other like source of supply, theamount ot paper necessary ro Ytorni a wrapper 'for the articlepreparatory to the folding operation, suoli articie being' representedin the several views ae a loaft of bread.

Heterrinv to the drawings wherein the same figures and letters oitreference indi cate like parts throughout the severai views: Figure lrepresents a side elcvatioii ot the machine and sectional view ot thedriving shaft lookiingr in the. direction of arrows .fr and Y of Figs.and 3; ifig. 2 is a rear ele-- vation. looliing; in the direction otarrow o of Fig. l; Fig. 3 is a ont elevation looking; in the directionoi. arrow i ot" F l.; Fig. i an end elevation pai f in section ot thefeeding drum looking' in the direction of arrow of Fig. 5; Fig. 5 i" avation ofthe feeding drum, broken its shaft and cani supporting bracketsG is a sectional end elevafon of the drinn on line 6 ont Fie". 55; Fig.t is if;

Specification of Letters .Patent ifgfige A www:

Ane'. it?, Limit-.

sei-iai no. 635,799.

tudinal sectional view oit the feeding drum on line 7 of Fig. 4i; Fig.Si is a detail upper plan vieu' o't' the paper cutting knife and brokenview ot its supporting frame and connecting` rod; Fig. S) is detail sideelevation ol" the knife gate, sectional vievv of its supporting,` trame,andbroken vieu' partly in section ot the gate actuating lever; Fig. 10is a detail sectional end vieu' of the knife and gate on line .i0 ofFig. S; also broken view of the gate support and gate connecting' rod; F1lV is a perspective detail view o'f a loatl oi bread and its Wrapper;Fig. l2 is a broken cud diagram ot' the loaf feeding drum and paperreel, broken view 'oit sev-- eral of the endiese loaf carriers showingthe position oj the carriers, drum and knife when a wrapper is about tobe severed; Fig.

, 13 is a detaii view of 'the intermittent mechanism for timing thetravel ot the loai5 carriers and sectional vieu' ot their supportingshafts; and Figs. le, and 1G are detail views of the loaf carriers.

The shafts carrying the several rotative elements are jonrnaled in theSide iframes 1t and il of the machine.

is the main driving shaft and 4. the drivingr pulley.

5 and t3 are shafts each of which carries a pair of sproclaiet ivlieels,viz. 75, 8, 9 and 10, ha ving; the notches ii spaced equally about theirperipliery to receive the loaf carrier s'.ipportinpT rods or tubes lf2.T c loaf carriers are formed in tivo :actions jourualed on the rods l2.Une section romijniees the, loai supporting` arms 13, ligje. l# and l5,lia-.ving 'the right angle arms lila and tace plate 13b integraltherewith. The other `iii-shaped Section con'iprises the arms i4 Ialsoents the small rode i6 ada'^ted. to engage it', Fiera. and. 3 ing shafti; fl intermittent t. i a

ries a part of the intermittent mechanism eomprisin 'the disk 20 andpins or rolls 21, eccentrica ly located with respect to the shaft, anddiametrically Lsituated vwith respect to each other. A

The second intermittent shaft 22 carries on one of its outer ends thedisk 23 (see also f Fig. 13) having the six equidistant notches 2,4 inits periphery adapted to be alternately engaged by the .pins 21 of thedisk 20. The opposite end of shaft 22 carries the large gear 25 meshingwith the pinion 26 on the lower sprocket wheel' shaft 6. By thearrangement of the gearing and intermittent mechanism above described,the disk 23 will make one-sixth of a revolution; the sprocket shafts 5and 6, one-third of a revolution to one revolution of the drivingsha-ft, thus timing the travel of the loaf carriers with respect to thetravel of the loaf feeding mechanism about to be described.

The loaf feeding mechanism comprises the drum 27 mounted on the shaft 28journaled in the machine frame.

29, 29a, so, son, ai and ein, Figs. 4, 5, e and 7, are levers that servethe purpose of loaf feeders during a vpart of the revolution of thedrum. These levers are pivotally supported on the blts 32 and operateagainst the inside faces of the heads 27a of the drum. The free ends ofthese levers carry the rolls '.33y adapted to travel in the curvedradial slots 34 formed in the before mentioned drum heads.

35 and 36 are stationary cam plates in close proximity to the drum headsand outside of the same and are securedto the brackets 37 and 38, whichbrackets are supported on the machine frame.

39 and 40, Figs. 1, 4 and 5, are curved plates also secured to thebefore mentioned brackets so that the space between said curved platesand the cam plates 35 and 36 will form cam grooves for the rolls carriedby the loaf feeding levers for the purpose of withdrawing said leverswithin the outer surface of the drum. l/Vhile the rolls of these leversare` engaged with the outer curved edges of the'eam plates, the bars 41,which bars connect each opposed pair of levers, project beyond theperiphery of the drum and close to the loaf supporting platforms 42, andwhenthe rolls of any of the pairs of levers Contact with the` plates 39and 40 they will be carried down between the plates 35, 36, 39 and 40and cause the opposed levers with their connecting bar to retreat intothe position shown by the lever 31, Fig` 6, and remain in such positionuntil the rotation of th-e Adrum has brought the roll of such lever orlevers in Contact with the cam plates are again forced outward.

43 are outwardly projectingI rods in the ends of the bars 41, which rodsare adapted 35 and 36 when they` 49 is a lever pivotally supported onthe bracket whose inner end is operatively connected to the gate, andits outer end with the connecting rod 50. The opposite end of this rodis connected to the trip lever 51, Fig. 1, so that, whenthe cam 52, onthe driving shaft, actuates said trip lever, the

' knife will be moved inward to cut a wrapper section, presently to bedescribed.

Motion is communicated from the upper sprocket wheel shaft 5 to the drumshaft 28 through the medium of the gear 53 on shaft 5 meshing with thegear 54 on the short shaft Fig. 1. Said shaft 55 carrying the sprocketwheel 56 which wheel is connected to the sprocket. wheel 57 on shaft 2Sthrough the medium of the chain 58.

59, Fig. 1, is a roll of paper whose shaft 60 is removably journaled inthe upper extension of the machine frame. From this roll the paper A isdrawn off and passed over the roller 61 and carried from thence down infront of the feeding drum 27 and 4between said drum and the verticalfaces of the loaf carriers 13 and 14. The loaves B are fed along theplatforms 62, either mechanically or by hand, and the inner one of saidloaves is deposited on to one of the drum platforms 42 and under thecontrol of one of the projecting feeding levers. Assuming the machine tohave just started with the feeding drum empty with the exception of asingle loaf, B', just pushed onto the drum as above described. Then thepaper will lie in front ofthe feeding drum as shown at Fig. 12 until theloaf B is brought into contact therewith by the rotation of said drum.To avoid confusion this second position of the loaf will be indicated as132.-- In Fig. 12 this contact or engagement of the loaf with the paperis represented as just taking place. The rotation of the drum will forcethe loaf against the inclined portion A1 of the paper strip, as shown;lby the third position, viz., B5, Fig. 1, and draw oli' from the roll 59the required amounty of paper when said loaf has been deposited on oneof the loaf carriers whose .rotary travel has been so timed with respectto the rotar?)7 travel of the feeding drum that it will ave reached the,proper position toI receive; the loaf at the proper time. While thearms 13 of the loaf carrier are moving downward into position to receivethe loaf in contact with the paper strip, the spring fingers 15 of thearms 14 will also be brought in Contact with the meeste paper and forceit against the loaf and hold said loaf firmly in position against thearms 13. As soon as the loaf has been deposited on the carrier adaptedto receive it, the feeding` lever 29 of suchloaf will then temporarilyretreat so as not to contact with the loaf carriers, and to reappearagain to receive another loaf from the platform 62, as'previouslymentioned. While the next loaf is being carried over by the feed/ingdrum, the loaf B3 will continue to descend in the embrace of its carrieras B4 until it has vreached its position as B5, Fig. 12, which willbring thennarrow space between the face plates 13b and 1l directlyopposite the knife 48;, and if the machine is running continuously therewill be another'loaf for instance, Biwimmediatelybelow, The

loaf carriers and loaf feeder will now be automatically.halted longenough for the knife to be advanced and sever the paper at the pointpreviously named. The vertical portions 13b and 149 serving to supportthe vertical 'section of the paper against the inward pressure of theknife. The severed section, designated as Alfigs. 1 and 11, can then befolded'by special or any well known mechanism (not shown) before theloaf has reached the lower sprocket'V wheels 9 and 10, where thecarriers will open as they pass around said 'wheels and allow a foldedloaf to drop out. `When the machineautomatically starts again to repeatthe operation just described, the free end of the paper will be wrappedabout the loaf B after the wrapper section A2 has been severed. rThiswill anchor such free end rmly while a loaf on the feeding drum isdrawing the requisite amount of paper from the roll 5f) to form its ownwrapper. lt will be understood that the paper strip isvv'ide enough toform the enel folds.

lt will be noted that the endlessly mov-- .able double section loafcarriers are so constructed and journalen to their rods that they willopen while passing around their rotatable supports, and remain rigidlyparallel with each other interinediate thereof. For it is necessary thatthe carrier sections should open at the top to receive a loaf and at thebottoni to discharge it aiidremain rigidly parallel between these pointsso as to retain the loaf while wrapper is being severed and the foldingcompleted.

ln automatic machines adapted to w 1ap -and fold articles of varyingsizes, like, for

instance, a loaf of bread, the first and most important step in theoperation is to detill termine the length of Wrapper for each individualloaf, and, when this can be done by the loaf itself, the folding,foperation is coin- 4paratively simple.

From the :foregoing description it will readily be seen that eachindividual loaf" draws oil from the reel paper sufficient to cover itstop and sides, while the length of I the several mechanical elementsshown to` effect the object sought, as other suitable feeding` andcarrying' mechanism can be emv ployed whereby a loaf or other likearticle of irregular size is brought by feeding mechanism forcibly incontact with a paper strip to gather paper sulicient to cover the topand sides of a loaf and deposit the same within the embrace of carriersand cut off a section of paper suitable to forni the entire wrapperwhile the loaf is within the embrace of such carriers.

Having, thus described my invention, what 'l claim is:

1. A bread-wrappingmachine compi-ising a loaf feeder, an intermittentlymovable series of carriers to receive loaves from the feeder, means forsupplying*wrapping inaterial between the feeder and the carriers to belaid across the outer surface of \ach loaf as it 'passes from the feederto a carrier, and means for severingi` the wrappinglr niaterial aftereach loaf, with a covering.;r of wrapping. material, is transferred fromthe feeder to said carriers.

"2. A bread-wrapping machine comprising a loaf feeder havingmeans forsupporting loaves projecting` outwardly therefrom, an endless series ofcarriers to receive loaves from the feeder, mea-ns for supplyingrwrappingr material between the feeder and the carriers to be laid acrossthe outer surface of cach loaf as it passes from the feeder to acarrier, and .means for severing the wrappingy material after each loaf,with a covering` of wrapping material, is transferred from the feeder tosaid carriers.

3, ln a wrapping machine of the characterdescribed, a series ofintermittently and yendlessly mo'able carriers, rotatable 'supportstherefor having` means for locating' the arriers thereon, a loaf feederadjacent to the zarriers, said carriers adapted to automatically openwhile passingaround their supports, said feeder adapted to force loaves,of varying` sizes in contact with a paper Istrip located between thefeeder and carriers and draw olf sul'licient paper to envelop the topand sides of a loaf and leposit said wrapped loaf into one of the opencarriers.

el. A wrapping` machine of the character described comprising a seriesof intermittently and endlessly movable carriers, rods on which thecarriers are pivotally supported, said supports having loca-ting meansthereon for the rods, said carriers adapted to open while l'iassingaround -the supports Mtl and remain rigidly parallel intermediatethereof, a loaf feeder adjacent to the carsupports for the carrier arms,locating means on the supports for the rods, said arms adapted to openwhile passing around the supports and remain rigidly parallelintermediate thereof, a loaf feederadjacent to the carrier arms adaptedto carry loaves of varying sizes and force a loaf against an interposedpaper strip and draw off paper sufficient to envelop the top and sidesof each individual loaf and deposit the loaf within the open arms, andan automatically actuated knife adapted to pass between the face platesof the arms to sever the paper strip.

6. A bread-wrapping machine comprising a loafv feeder, an endless seriesof carriers to receive loaves from the feeder, each of s'aid carriershaving two members, means being provided whereby said two members aut0-matically open to receive a loaf and then close upon it, means forsupplying wrapping material between the feeder and the carrier to belaid across the outer surface of each loaf as it passes from the feederto a carrier, and means for severing the wrapping material after eachloaf, with a cover' ing of wrapping material, is transferred from thefeeder to said carriers.

7. In a wrapping machine of the character described, the combinationwith intermittently movable loaf carriers, of an intermittentlyrotatable loaf feeder adapted to operate in unison with said carriersand in close proximity thereto, -movable loaf supporting meansl on saidfeeder adapted to force a loaf against a strip of paper located betweenthe feeder and carriers to form a wrap for the top and sides of the loafand deposit said wrapped loaf on a carrier and then temporarilydisappear.

8. A bread-wrapping machine comprising a rotatable loaf feeder, anendless series of carriers to receive loaves from the feeder, means forsupplying Wrapping material between the feeder and the carriers to belaid across the outer surface of each loaf as it passes from the feederto a. carrier, and means for severing the Wrapping material at a pointintermediate of two of the carriers after loaves have passed into suchltwo carriers. L

9. A wrapping machine of 'the character described comprisingintermittently movable loaf carriers, an intermittently rotatable drumacting in unison with the carriers with a paper strip located betweensaid carriers and drum, movable loaf supporting feeders on said drumadapted to support a loaf and forcepthe same against the. paper strip to.form a wrap sufficient to cover the top and sides of a loaf and deposltthe same on one of said carriers, means for temporarily causing saidfeeder to disappear for the purpose set lforth.

10. A breadnwrapping machine comprising a loaf feeder having means forsupporting loaves projecting outwardly therefrom, an' endless series ofcarriers to rccelve loaves from the feeder, each of said carriers havingtwo members one of which provided with a spring retainer, means beingprovided whereby said two mcmhers automatically open to receive a loafand then close upon itmeans for supplying wrapping material between thefeeder and the carriers to be laid across the outer surface of each loafas it passesfrom the feeder to a carrier, and means for severing thewrapping,r material after each loaf, with a. covering of wrap pingmaterial, is transferred from the feeder to said carriers.

11. A bread-wrapping machine comprising a rotatable loaf feeder havingmeans f or supporting loaves projecting outwardly therefrom, saidsupporting means being movably mounted on the feeder, means forautomatically projecting and reti-acting the sup orting means duringrotation of thc fee er, an endless series of carriers to receive loavesfrom the feeder, and means for supplying wra ping material between thefeeder and t e carriers to be laid across the outer surface of each loafas it passes from the feeder to a. carrier.

In testimony whereof I afiix my signature in presence of two witnesses.

CHARLES BEERS. Witnesses:

GEORGE A. TYLER, CHARLES L. JOY.

